Hay-rake.



G. PEARSON.

HAY RAKE.

APPLIOATION FILED JUNE 2, 1910.

992,384. I Patented May16,1911.

Ghcurbsfmrson 1n: NORRIS PETERS c0. WASHINGTOlV, D- c UNITE STATES PA LFFIGE CHARLES PEARSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONALHAR- VESTER COMPANY, A CORPORATION OF NEW JERSEY.

HAY-RAKE.

Specification of Letters Patent.

Patented May 16, 1911.

Application filed June 2, 1910. Serial No. 564,670.

To all whom it may concern:

Be it known that I, CHARLES PEARSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Hay-Rakes, of which thefollowing is a specification.

My invention relates to hay rakes of the self-dump type, and inparticular to the tripping mechanism whereby the tooth carrying head isconnected with the traction wheels in a manner to cause it to rock aboutthe axis of the wheels in dumping the load, its object being to simplifysuch mechanism, make it strong and reliable in operation and not liableto become disorganized. I attain these objects by means of the mechanismillustrated in the accompanying drawings, in which a Figure 1 representsan end elevation of a hay rake, partly in section, having my inventionforming a part thereof; Fig. 2 is a detached detail view of Fig. 1,designed to show the tripping mechanism in different operativepositions; Fig. 3 is a top plan view of the tripping lever and itsassociated parts, as shown in Fig. 1; Fig. at is a fragment of one ofthe ratchet wheels that are adapted to be connected with the tractionwheels, showing the pawl of the dump shaft in operative position; Fig. 5is a rear elevation of the trip controlling arm; Fig. 6 is a top planview, partly in section, designed to illustrate the manner of connectingthe trip lever with the rocking pawl shaft; Fig. 7 is a detail drawingrepresenting the trip lever supporting bracket secured to the rake head;and Fig. 8 is an end view of Fig. 7.

The same reference numerals designate like parts throughout the severalviews.

1 represents one of the carrying wheels journaled upon the stub axle 2secured to the head 3 and having internal tooth ratchet rim 4 formingpart of the hub thereof.

5 represents a draft frame having its rear end pivotally connected withthe head, and 6 represents the thills secured to the lower side of saiddraft frame.

7 represents the rake teeth, that may be connected with the rake by anyof the common forms of mechanism permitting them to rock therewith indumping the load. A common form of toggle link mechanism includes foreand aft arranged bars 8 and 8", having their adjacent ends pivotally connected and their opposite ends pivotally connected with the rake headand the transverse bar 10 of the draft frame mechanism; being operativeto lock the head in raking position in a well-known way.

8 is a hand dumping lever secured to the head 3.

11 represents a common form of foot lever pivotally connected with thedraft frame and having a rearwardly extending arm 12 provided with aroller 13 that contacts with the lower side of the toggle connectinglinks in a manner to raise their adjacent ends and permit the rake to bedumped and to control the movement thereof, and 1% represents a seatmounted upon the spring support 15 that is secured to the draft frameand provided with a sustaining brace member 16.

17 represents a divided rock shaft mounted in bearings supported by therake head and having pawls 18 at opposite ends thereof that are adaptedto engage with the ratchet members 4:, forming part of the carryingwheels, in a common manner.

The inner ends of the rock shaft are provided with rearwardly extendingarms 19 that are received by socket members 20, that have their rearends pivotally connected with the rear end of a tripping lever 21 thatis pivotally connected with the forward end of a bracket 22 by means ofa pin 23, the bracket being secured to the rake head by means of bolts24:, and the sockets connected with the tripping lever by means of a pin26 represents a trip controlling lever having its lower end pivotallyconnected with the rear end of the bracket 22, and its body portionformed substantially concentric with the axis of the tripping lever andprovided with a roller 27 journaled upon a pin 28,

the upper end of the trip controlling lever being extended forward andprovided with an ear portion 29, having an opening therein that slidablyreceives a link 30 that is provided with a hook portion 31 at itsforward end whereby it is connected with an eye 32 forming part of thetripping lever 21, the rear end of the link being encircled by acompression spring 33 that is operative between the ear portion 29 and apressure adjusting nut 34 in a manner to yieldingly hold the roller 27mounted upon the trip controlling lever in contact with the rear end ofthe tripping lever, the axis of the roller being above the end of thelever when the teeth are in a raking position, and below the end thereofwhen the lever is pressed downward at its forward end to dump the load,as shown in Fig. 2, the roller being operative as a yielding abutment tohold the lever at either limit of its movement.

In operation, with the rake teeth in raking position, the divided rockshaft is in the position shown in Fig. l and by dotted lines in Fig. 4,with the pawl disengaged from the ratchet wheel and the rear end of thetripping lever below roller 27 carried by the trip controlling lever 26.When it is desired to throw into action the dumping mechanism theoperator presses downward upon the forward end of the tripping lever 21,thereby turning the divided rock shaft in its bearings and causing thepawls at opposite ends thereof to engage with the ratchet wheels in amanner to rock the tooth carrying head about the axis of the carryingwheels, as shown by dotted lines in Fig. 2, to dump the load, and whenit has reached a predetermined forward movement, the trip ping levercontacts with the draft frame in a manner to turn the rock shaft in anopposite direction, which movement releases the pawls and allows thehead and teeth to as sume a raking position.

What I claim as my invention, and desire to secure by Letters Patent,is:

1. A tripping mechanism for hay rakes including, in combination, a rakehead, a pawl carrying rock shaft mounted upon said head, a trippinglever connected with said rock shaft and pivotally mounted upon saidhead, and a trip controlling lever pivotally mounted upon said head andyieldingly held in contact with the rearend of said tripping lever.

2. A tripping mechanism for hay rakes including, in combination, a rakehead, a pawl carrying rock shaft mounted upon said head, a trippinglever pivotally mounted upon said head and connected with said rockshaft, a trip controlling lever pivotally mounted upon said head, aroller journaled upon said trip controlling lever and adapted to engagewith the rear end of said tripping lever, and a spring connectionbetween the said trip controlling lever and said tripping leveroperative to hold said roller in contact with said tripping lever.

3. A. tripping mechanism for hay rakes including, in combination, a rakehead, a pawl carrying rock shaft mounted upon said head, a trippinglever pivotally mounted upon said head and connected with said rockshaft, a trip controlling lever pivotally mounted upon said head, aroller journaled upon said trip controlling lever and adapted to engagewith the rear end of said tripping lever, a link connection between thetrip controlling lever and said tripping lever, and a compression springsurrounding said link and operative to hold said trip controlling levertoward said tripping lever.

4. A tripping mechanism for hay rakes including, in combination, a rakehead, a pawl carrying rock shaft mounted upon said head, a bracketsecured to said head intermediate its ends, a tripping lever pivotallyconnected intermediate its ends with the forward end of said bracket andconnected with said rock shaft, a trip controlling lever pivotallyconnected with the rear end of said bracket and having its body portionsubstantially concentric with the axis ofsaid tripping lever, a rollerjournaled upon said trip controlling lever and adapted to engage withthe rear end of said. tripping lever, a linkconnection between said tripcontrolling lever and said tripping lever, and a compres sion springsurrounding said link and operative to hold said trip controlling levertoward said tripping lever.

5. A tripping mechanism for hay rakes including, in combination, a rakehead, a divided pawl carrying rock shaft having outwardly turned armsnear its middle, sockets receiving said arms, a bracket secured to saidhead intermediate its ends, a tripping lever pivotally connectedintermediate its ends with the forward end of said bracket and with saidsockets in rear of the axis of said lever, a trip controlling leverpivotally connected with the rear end of said bracket and having itsbody portion substantially concentric with the axis of said trippinglever, a roller journaled upon said trip con- .trolling lever andadapted to engage with the rear end of said tripping lever, a linkconnection bet-ween said trip controlling lever and said tripping lever,and a compression spring encircling said link and operative to hold saidtrip controlling lever toward said tripping lever.

CHARLES PEARSON.

Witnesses RAY D. LEE, FRANK BELKA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Fatents, Washington, D. O.

